442360823653 has 4 divisors (see below), whose sum is σ = 505555227040. Its totient is φ = 379166420268.

The previous prime is 442360823627. The next prime is 442360823683. The reversal of 442360823653 is 356328063244.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 442360823653 - 2¹³ = 442360815461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442360823683) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31597201683 + ... + 31597201696.

It is an arithmetic number, because the mean of its divisors is an integer number (126388806760).

Almost surely, 2^442360823653 is an apocalyptic number.

It is an amenable number.

442360823653 is a deficient number, since it is larger than the sum of its proper divisors (63194403387).

442360823653 is an equidigital number, since it uses as much as digits as its factorization.

442360823653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63194403386.

The product of its (nonzero) digits is 2488320, while the sum is 46.

Adding to 442360823653 its reverse (356328063244), we get a palindrome (798688886897).

The spelling of 442360823653 in words is "four hundred forty-two billion, three hundred sixty million, eight hundred twenty-three thousand, six hundred fifty-three".